Obtain all zeros of f (x)=x cube +13 x square +32x+20 if its one zero is -2
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f(x) = x^3+13x^2+32x+20
x =-2, x+2
using long division
divisor = x+2
qutiont =x^2+11x+10
g(x)=(x+2)(x^2+11x+10)
=(x+2)(x^2+x+10x+10)
=(x+2)(x(x+1)+10(x+1) )
=(x+2)(x+10)(x+1)
other factors = (x+2)(x+10)(x+1)
g(x) = -2,-10,-1
x =-2, x+2
using long division
divisor = x+2
qutiont =x^2+11x+10
g(x)=(x+2)(x^2+11x+10)
=(x+2)(x^2+x+10x+10)
=(x+2)(x(x+1)+10(x+1) )
=(x+2)(x+10)(x+1)
other factors = (x+2)(x+10)(x+1)
g(x) = -2,-10,-1
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